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Classification systems in slope stability analysis Slope Mass Rating (SMR) Chinese Slope Mass Rating System (CSMR) Rock slope rating (RSR) Slope stability.

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Presentation on theme: "Classification systems in slope stability analysis Slope Mass Rating (SMR) Chinese Slope Mass Rating System (CSMR) Rock slope rating (RSR) Slope stability."— Presentation transcript:

1 Classification systems in slope stability analysis Slope Mass Rating (SMR) Chinese Slope Mass Rating System (CSMR) Rock slope rating (RSR) Slope stability rating (SSR) classification system Dump mass rating

2 Slope Mass Rating (SMR) SMR = RMR + (F1.F2. F3) + F4 The RMR is computed according to Bieniawski’s 1979 proposal, adding rating values for five parameters: Strength of intact rock; RQD (measured or estimated); Spacing of discontinuities; Condition of discontinuities; and Water inflow through discontinuities

3 F3 reflects the relationship between the slope face and the joint dip. Method Natural slope Presplitting Smooth blasting Blasting or mechanical Deficient Blasting F F4 is a factor for the method of excavation. The adjustment factor for the method of excavation has been fixed empirically as follows: Adjustment ratings for method of excavation (after Romana, 1995)

4 Rock slope rating (RSR)

5 Slope stability rating (SSR) classification system

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